zeliha-infosec-journey

Assessment Methodology & Report Writing Cheat Sheet

No matter how good the technical work is, the report is the one artifact the client/assessor actually sees. This document covers PTES methodology and the report structure expected in eJPT/BTL1.


Table of Contents

  1. PTES (Penetration Testing Execution Standard) Phases
  2. Scoping & Rules of Engagement
  3. Finding Write-Up Template
  4. Severity / Risk Rating
  5. Executive Summary Template
  6. Full Report Skeleton
  7. eJPT vs BTL1 Report Differences
  8. Common Mistakes

1. PTES (Penetration Testing Execution Standard) Phases

Pre-Engagement → Intelligence Gathering → Threat Modeling →
Vulnerability Analysis → Exploitation → Post-Exploitation → Reporting
Phase Content
Pre-Engagement Scoping, signing the RoE, communication plan, emergency procedure
Intelligence Gathering OSINT (osint-cheatsheet.md), passive/active recon
Threat Modeling Which asset is most critical, what’s the most likely attacker/scenario
Vulnerability Analysis Scanning (nmap, nikto, gobuster) + manual verification
Exploitation Proving the vulnerability (Metasploit, manual exploit)
Post-Exploitation Privesc, lateral movement, assessing data value — but never stepping outside scope
Reporting Documenting findings, evidence, and recommendations

2. Scoping & Rules of Engagement

What needs to be nailed down before an engagement starts:


3. Finding Write-Up Template

Use a consistent format for every finding:

### [Finding Title] — e.g. Outdated Drupal Installation Leads to Remote Code Execution

**Severity:** Critical
**CVSS Score:** 9.8 (if applicable)
**Affected Asset(s):** 10.0.2.4 (web.internal.local)

**Description:**
The target is running Drupal 7.x, which is vulnerable to CVE-2018-7600
(Drupalgeddon2). This vulnerability allows unauthenticated remote code
execution.

**Evidence:**
[Screenshot / command output / PoC]

**Impact:**
An attacker can execute code on the web server as www-data, which can
lead to database access and potential full system compromise.

**Recommendation:**
Upgrade the Drupal core to the latest security patch. As an interim
measure, add a WAF rule to block CVE-2018-7600 signatures.

**References:**
- CVE-2018-7600
- https://www.drupal.org/sa-core-2018-002

4. Severity / Risk Rating

Level Description Example
Critical Full system compromise without authentication Unauthenticated RCE
High Significant data/access loss, but requires one more step SQL injection leading to data exfiltration
Medium Not directly exploitable but widens the attack surface Missing security headers, information disclosure
Low Minimal impact, best-practice violation Verbose error messages
Informational Not a risk but worth noting An old but non-exploitable version disclosure

If you’re using a CVSS score (CVSS 3.1 Calculator), align the Base Score with the severity band: 9.0–10.0 Critical, 7.0–8.9 High, 4.0–6.9 Medium, 0.1–3.9 Low.


5. Executive Summary Template

For a management-level reader — minimal technical jargon, focused on business impact.

## Executive Summary

During the penetration test conducted for [Company Name], [X] findings
were identified: [N] Critical, [N] High, [N] Medium, [N] Low. The most
critical finding is [summary of the core vulnerability and its
business impact].

If left unremediated, these findings could allow an attacker to
[risk summary, e.g. "access the customer database and exfiltrate
sensitive data"]. As a priority action, [summary of the top
recommendation] is advised.

6. Full Report Skeleton

1. Cover Page (date, version, confidentiality notice)
2. Executive Summary
3. Scope & Methodology (referencing the PTES phases)
4. Risk Summary (severity distribution chart/table)
5. Detailed Findings (ordered by severity, most critical first)
6. Appendices (raw scan output, tools used)

7. eJPT vs BTL1 Report Differences

  eJPT BTL1
Focus Attack chain: recon → exploit → privesc → proof Analysis chain: evidence → IOC → verdict → recommendation
Format Usually a Q&A-style practical exam, not a freeform report A structured report submission is expected (24-hour practical + written write-up)
Evidence type Flags, command output, screenshots Log/header/hash evidence, defanged IOC list
Tone/language Technical, step-by-step Technical + justification written in a SOC-analyst voice

8. Common Mistakes


Prepared as a reference for the methodology/reporting components of eJPT and BTL1.